Home / 5,806.56-8,709.82-2,108.78

Finding the Fourth Proportional to 5,806.56, 8,709.82 and 2,108.78

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Solution

The fourth proportional to 5,806.56, 8,709.82 and 2,108.78 is: 3,163.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,806.56 : 8,709.82 = 2,108.78 : x
  2. Step 2: Convert to fraction form
    5,806.56/8,709.82 = 2,108.78/x
  3. Step 3: Cross multiply
    5,806.56x = 8,709.82 × 2,108.78
  4. Step 4: Simplify right side
    5,806.56x = 18,367,094.22
  5. Step 5: Solve for x
    x = 18,367,094.22/5,806.56
  6. Step 6: Final answer
    x = 3,163.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.